deisler



H. DEISLER May 17, 1932. mum CASTER v Re. 18,467

2 Sheets-Sheet 1 Original Filed Dec. 5, 1928 May 17,1932;

H. W. DEISLER SPRING CASTER 2'SheetsSheet 2 Original Filed Dec. 5, 1928 Reiuued May 17, 19 32 fag. 18,467 i UNITED STATES," PATENT OFFICE may w. nnrsmza, or BUGYRUS, onto, assrcnon "r 'rnn wanna-run moment comm, or war-moron, onto. a coaroaarron or 01110 ori ins: in. 1,755.5, dated This invention relates generally to casters and more particularly to what may be termed a spring caster inasmuch as the caster wheel is arranged between the ends of two leaf springs projecting from a bracket which is suitably secured to the article supported.

The object of the invention is to provide a simple form of caster such as is used upon hand trucks and which will be so constructed as to provide a spring or yielding member The invention consists in the novel features of construction and m the manner of combining or arranging the same all of which will be fully described hereinafter and pointed out in the a pended claims.

In thedrawings ormi-ng a part of this.

specification Fig. 1 is a side view of a spring caster constructed in accordance with one form of my invention; Fig. 2 is a top plan view of the same; Fig. 3 is a front view of the same- Fig. 4 is an elevation partly in section of a second form of s ring caster of the swivel plate type; and ig. 5 is a top plan view of the form illustrated in Fig. 4.

Describing the embodiments of my invention as illustrated in the accompanyin drawings, considering first the form 0 caster shown on sheet one, 10 designates the wheel of the caster which may be of any deslred construction mounted forrotation on an axle 12. The ends of the axle 12 are secured in the bent back ends 13 of the leaf sprin 14, by the bolts 15 which pass therethroug as illustrated clearly in Fig.- 1.

The inner ends of the leaf springs 14 are secured to the bottom of'abrac et 16. Eachofthe spring arms 14 may be reinforced with one or more additional leaves 17, the number of additional leaves used depending on the to be used, the sprin 14 and additional leaves 17 being secure to the bracket 16 by w bolts 24. Depending from the bracket 16 is srnmo ca'srnn v I 1 April 22,1930, swarm. asaeeo, filed December 5,1020. a plication 10: reissue fled Kay 15, 1981. Serial No. 537,694.

a lug or rib 21 against which the sides of the springs 14 abut when bolted in place to properly space the springs and prevent any lateral shifting of the same. For reinforce- 'ment of the bracket the ribs 22 are provided.

Extending upwardly from the top end of the bracket 16 is a king bolt '18 which is swiveled in a bearing member-19. which is provided with 'apertured flanges for attaching the same to the truck or other the vice on whch the caster is to be used; The king bolt 18 is secured in the bearin by means of a groove 25 in the pin into w ich a set screw 26 in the bearing member ex-' tends. To receive the end thrust of the king bolt 18, a ball 28 is arranged in the end of v the bearing member and bears against an adjusting screw 27. V

In the modification shown on sheet two of the drawings, the wheel and spring assembly is thesame as that shown on sheet one and as described above. In this form however, the upper end of the bracket 16 is provided with a central aperture about which is formed a ball race 30 on the underside of the bracket. On the top of the bracket '16 and concentric with the central aperture is a second ball race 31' of a substantially greater diameter than the lower ball race. Secured. to the bracket by meansof a threaded boss .32 extending through the aperture therein, is a swivel plate 33 rovided with a ballrace on its underside w ich together with theball race 31 on the bracket receives the balls 34 and provides a bearingto take the load and permits easy swivelin of the said caster under very heavy loa s. Around the'boss 32 and received in the lower ball race on the bracket 16 are balls 35 held in place by hearing member 36, lock washer 37 and nut 38. This lower bearing takes the lateral thrust of the load on the caster and prevents any, binding of the same. The swivel plate is provide with apertured ears for attaching the same to the underside of the truck or otherdevice' on which it is to be' used. loads for which the particular casters .are-

It will be seen that I provide a simple and eflicient form of casterjwhich will absorb pairo Having thus described my invention, what I claim is:

1. The combination with a housing, of a king bolt journaled therein, a bracket connected to the lower end of said king bolt and rotatable therewith, and spring arms fastened to the bracket, and -a caster wheel arranged between and carried by the free ends of said spring arms.

2. The combination with a caster wheel havin laterally projecting axle ends, of a spring arms between the ends of which said axle ends are mounted, a king bolt, a

' housing in which said king bolt rotates, and

combination with a'caster wheel havin to the lower end of said bolt, spring arms connected to the lower end of said bracket and extending substantially horizontally from said bracket, and a caster wheel mount-,

ed between the free ends of said spring arms. 4. In a device of the kind described, the an axle, of a pair of leaf springs having cut back ends in which the axle of said wheel is mounted, a bracket to which said leaf springs are connected, a king bolt to which said bracket is attached, and means for carrying said king bolt.

5. In a device of the kind described, the combination with a housing, a 'bolt arranged therein, a bracket carried at the lower end of said king bolt, leaf springs connected to the lower end of said bracket and projecting therefrom, the lowermost springs of the se-' ries being bent back upon themselves, a caster wheel positioned between the leaf springs,

an axle for said wheel, the ends of said axle being mounted in the bent back ends of the leaf springs, and means for maintaining said axle ends in the curved ends of the leaf springs.

of said leaf springs, and a bearing member to which said bracket is swiveled.

9. A caster comprising a wheel having an axle the ends of-which extend on opposite sides of said wheel, a pair of leaf springs each having one end secured to said axle, one on each side of said wheel, a bracket to which the opposite ends of said spring are secured, means to prevent lateral movement of said springs on said bracket, and a bearing member to which said bracket is swiveled, said bearin member provided with means for attaching the same to a load.

10. A caster comprising a wheelhaving an axle the ends of which extend on opposite sides of said wheel, a pair of leaf springs each having one end bent back forming a U-portion in which the ends of said axle are mounted, a bracket member to which the a wheel'and axle therefor disposed on the opposite side of said swiveling axis from said bracket and a pair of substantially horizontal spring arms interconnecting said laterally dlsposedbracket and the opposite ends of said wheel axle.

In witness whereof I hereunto afiix my signature this 8th day of May, 1931. HARRY W. DEISLER.

6. In a device of the kind described, the a combination with a caster wheel having an axle, leaf springs between which the caster 'wheel is positioned, the ends of said leaf springs bent back and providing mountings for the ends of the axles, bolts for retaining said axle ends in place, a bracket, the inner ends of the leaf springs being connected to the bottom of said bracket, a housing and a king bolt arranged in said housing, the up- A of said spring and a bearing member to which said bracket is swiveled.

8. A caster comprising a wheel havingan axle, leaf springs secured at one end to said axle, a bracket secured to the opposite ends 

